Poration



C. R. SHORT.

HYDROCARBON MOTOR.

APPLICATION man DEc.1o.19|7.

Patented Jan. 10', 1922a INVENTQR. CHA/nes SHORT,

y. BY .f 7, lzr- A TTORN E Y.

UNITED srarshsirsnr OFFICE.

CHARLES R. SHORT, OF DETROIT, MICHIGAN, ASSIGNOR TO GENERAL MOTORS COR- POBATION, OF DETROIT, MICHIGAN. A CORPORATION 0F DELAWARE.

HYDROCARBON MOTOR.

Application led December 10, 1917.

To all whom it may concern Be it known that I, CHARLES R. Snoer, a subject of the King of Great Britain, and resident of Detroit, Wayne County, State of Michigan, have invented certain new and useful Improvements in Hydrocarbon Motors, of which the following is a specification.

This invention relates to improvements on hydrocarbon motors, and more particularly to temperature regulating systems and apparatus therefor.

One of the objects of this invention is to devise a hydrocarbon motor of clean and neat appearance.

Another object of this invention is to devise a hydrocarbon motor in vwhich the incoming gases will be maintained at substantially a constant temperature.

Another object of this invention is to devise a hydrocarbon motor in which the joints about the intake and exhaust manifolds and the cylinder blocks may be readily assembled and made tight.

Another object of this invention is to provide a meansA for heating the incoming gases of a hydrocarbon motor to a maximum degree when desired.

Another object of the invention is to provide a hydrocarbon motor` having a head sec tion in which a minimum number of port surfaces is necessary.

. Another object of the invention is to provide a hydrocarbon motor having a head section in which a common intake port is arranged and j acketed by exhaust gases.

These and other objects will more clearly appear from the following description taken in connection with the accompanying drawings, which form a part of this specification and in which:

Figure 1 is an end elevation of a hydrocarbon motor of V type showing the upper portions in section and the invention applied thereto.

Figure2 is a plan view of a block ofA cylinder heads partially in section and having an exhaust manifold attached thereto.

Figure 3 is a plan view of the intake 1nanifold, and Figure 4 is a detail longitudinal sectional view of a portion of the exhaust manifold showing a branch exhaust induction pipe connectedr therewith.

Referring to the drawings-10 represents a hydrocarbon motor having a crankcase 11 Specification of Letters Patent.

Patented Jan. 10, 1922.

serial xo. 206.443.

with cylinder blocks 12 secured thereon in V relation one to the other.

Each block of cylinders 12 has a head section 13 bolted to the top as by bolts 14. Each head section 13 has a plurality of intake and exhaust ports 15 and 16 respectively, arranged in alignment along the length thereof, and each fitted with the customary lvalves 17 and valve mechanism 18.

The intake ports 15 of each cylinder head section communicate with a common passage 19, which in turn communicates with the common intake 2()` shown in the drawings as formed intermediate of the length of the cylinder head section where a suitable boss 21 is arranged to provide a .finished joint surface.

The exhaust ports 16 of each cylinder head section are connected through passages 22 with the outer side of the head, and,'as shown in the drawings, the two central exhaust ports are also connected by passages .23 cored under the common intake passage 19 as at 24: arranged concentrically with the common intake 20 as at 25. whereby the common intake is concentrically j acketed by the cored passage 23 which also appears on the plane surface of the boss 21.

A combined intake and exhaust manifold 26 is arranged between the V blocks Vof the cylinders to bridge the space and is secured to the plane surfaces of the bosses 21 by suitable screws inserted through the holes 26', said manifold having a common inlet opening k27, from which the intake or inlet passages 28 extend in opposite curves to the intake passages 20.

The manifold 26 is also formed with the jacket 29 surrounding the intake passages 28 and opening at the end of said manifold to register and connect with the exhaust ports 25 surrounding the intake ports 20. The jacket 29 has an outlet 30 arranged in the center thereof, said outlet having a valve 31 preferably of the butterfly type suitably arranged therein whereby it may be adjusted to control the extent of said opening.

The exhaust passages 22 where they open on the side of the head section are interconnected, one with the other, by the exhaust manifold 32. The manifold 32 of each header is continued to the rear of the motor, where they are brought together to a common Y outlet or exhaust 33. The Y member 33 is provided as particularly shown in Fig cylinders and one from the intake .'acket all said outlets combining` in the one Y outlet A33.

A carburetorl 36 is shown attached to the intake manifold opening' as customary with hydrocarbon motors.

The general arrangement of parts and intake and exhaust passages as described will maintain a practically constant working' temperature in and about the cylinder heads,v whereby all explosive. gases entering' the cylinders will do so at a predetermined and regulated temperature, and thus secure proper eiliciency.

The action' of the exhaust gases'npon the pipes and passages serving; to convey the intake or incoming gases will be practically automatically controlled, that is, the higher the speed of the engine the greater the volurnev of explosive` gas entering` througlii the intake passages, and likewise the greater the amount of heated exhaust gases circulated above said intake passages, whereby the incoming gases are heated with a proportionate amount ot heat directly in ratio to the amount of gases entering; the cylinder, and it must be understood in this connection that the customary water jacket shown as surrounding all passages, cored and extending` throughout the cylinder head sections will act to aineliorate and equalize or regulate any tendency to excessive chan in temperature which might otherwise occur.

lhile I have described and will claim the preferred embodiment ci? my invention, it will be obvious to those skilled in the art that many modifications and changes may be made without departing' from the scope of the invention.

Having thus described my invention, what I claim and desire to secure by Letters'Patent is:

1. In a hydrocarbon motor, a cylinder head having an intake passage, an intake port therefor', and an exhaust port; an exhaust valve adapted to control-the flow of exhaust gases through said exhaust port; and two passages formed in said head and leading' from said port, and through both of which exhaust Zrases may flow, one of said exhaust passages being contiguous to said intake passage adjacent to said intake port.

2. In a hydrocarbon motor, a cylinder head having an intake passage and an exhaust i ,acceso port; an exhaust valve adapted to control the flow of exhaust `gases through saidexhaust port; and two passages formed in said head and leading` 'from said port and the outlet ends of which passages are located at opposite sides of said head, and through both of which passages exhaust may flow, one of said exhaust passages anged aliout said intake passage within said head.

In a hydrocarbon motor a cvlinder head having an exhaust port; an exhaust valve adapted to control the flow of exhaust through said exhaust port; two passages formed in said head and leading from said port and through both of which exhaust gases may flow; and an inlet passage formed in said head and the inlet end of which is arranged concentric with the outlet end of one of said exhaust passages, the inlet end of said. inlet passage and the outlet end of the exhaust passage with which said end is concentric beine located at one side of the cylinder head.

si. A hydrocarbon Vmotor having a cylinder head formedwith a cored passage common to a plurality of intake ports, and having; a common inlet on one side of said head, an exhaust outlet on the opposite side of said head, and common to a plurality of exhaust ports, and a bypass extending from said exhaust passage to and about said inlet passage.

5. In a hydrocarbon motor, a cylinder head having' concentric openings leading into an inlet and an exhaust passage, and separate inlet and exhaust ports with which said passares respectively communicate; and a manifold having4 concentrically arranged mixture supply and exhaust `rifas passages which register with the concentric openings aforesaid in said cylinder head. y

6. In a hydrocarbon motor, a cylinder head having; concentric openings leading into an inlet and an exhaust passage.y and separate inlet and exhaust ports with which said passages respectively communicate, and aV second exhaust passage leading from said exhaust port; and a manifold having concentrically arranged mixture supplyyand exhaust gas passa-ges which register with the concentric openings aforesaid in said cylinder head. p

7. A hydrocarbon motor having a pair of cylinder blocks arranged in V formatiomhead sections fitting said, cylinder blocks and each having a plurality of inlet ports witha common outlet on the inner side-of said head sections and a plurality of exhaust ports on the outer side of said head sections and a bypass leading from an exhaust port to the inner side of the head Aabout the inlet port thereof, a manifold bridging' the head sections of said motor between the inlet ports thereof and having a central inlet passagev therethrough and a concentric exhaust passage, and

iis

bl'dgng the inlet and bypass, exhaust ponts in Said oyinde heat? Section5.

8. l hydrocarbon motor conn' a pan? of cjyf'lnde'f books am'zmgged .in V 1', tion, one to the otheg (fv'indor head, sac fitting said oylndez 'blocks :md @Mh having; a puralty of outlet passages along' 'the outer Sitte then/of und, a bypass 'from an outlet 'passage 'to 'the inner side oif o hea-(1 Section5j un intake manifold bridging' said intakes and having a aoket formed theremound convA muncnt'ng with Said bypass, an exhaust pipe communicating with said outlet pas- Sages und said manifold jacket, and a, vulve controlling the outlet from said jacket.

9. Ahydrooztrbon motol` Comprising a phy ralty of cylinder blocks ufanged in "a" .rolation, nach block ,ulvlg inkt :md leinnist ports amngd on a common plane stu-sfarzo, and common manfod having intake anti exhaust Qassagos thoretu'ongh and 'idg'ng- Said blocks and Seo'uio thereto oveV Said nlet and exhaust ponts on the Cacao of Suid plane surfaces.

In testimony Wheyoo I affix my signature.

CHARLES R. SHOE 

